Extracted Elemental Impurities Reported for Multi-material Systems
Element | Test Article | Extraction Details | Extracted Concentration | Ref. | |
---|---|---|---|---|---|
Solvent | Conditions | ||||
Al | Capsule filter; PVDF membrane, PP shell | Water | Dynamic extraction with recirculation, ambient temperature, 24 h | 6 ng/mL | 18 |
Capsule filter; PVDF membrane, PP shell | Ethanol | <0.1 ng/mL | |||
Plastic prefilled syringe | Placebo | 50 °C, 1 week; 0.8% Polysorbate 80, 0.9% NaCl, pH 4 | 24 mg/kg | 24 | |
Single-use manufacturing system | Simulant | 5/10/90 [dimethylformamide (DMF)/ethanol/water], ambient, 7 days, agitation | <2 mg | 36 | |
Syringe used to compound total parenteral nutrition solutions | Water | Static extract, filled syringe, 24 h at ambient temperature | 1–10 μg/L | 50 | |
Type 1 vials + halobutyl rubber closure | 5% human serum albumin | 60 °C for 10 h, followed by 1 month at 20 °C | 100 μg/L | 52 | |
Ca | Capsule filter; PVDF membrane, PP shell | Water | Dynamic extraction with recirculation, ambient temperature, 24 h | 22 ng/mL | 18 |
Capsule filter; PVDF membrane, PP shell | Ethanol | ||||
Single-use manufacturing system | Simulant | 5/10/90 (DMF/ethanol/water), ambient, 7 days, agitation | <2 mg | 36 | |
Cu | Capsule filter; PVDF membrane, PP shell | Water | Dynamic extraction with recirculation, ambient temperature, 24 h | 2 ng/mL | 18 |
Capsule filter; PVDF membrane, PP shell | Ethanol | <0.1 ng/mL | |||
Mg | Capsule filter; PVDF membrane, PP shell | Water | 3 ng/mL | ||
Capsule filter; PVDF membrane, PP shell | Ethanol | <0.1 ng/mL | |||
Na | Capsule filter; PVDF membrane, PP shell | Water | 280 ng/mL | ||
Capsule filter; PVDF membrane, PP shell | Ethanol | 160 ng/mL | |||
Single-use manufacturing system | Simulant | 5/10/90 (DMF/ethanol/water), ambient, 7 days, agitation | <2 mg | 36 | |
Zn | Capsule filter; PVDF membrane, PP shell | Water | Dynamic extraction with recirculation, ambient temperature, 24 h | <0.1 ng/mL | 18 |
Capsule filter; PVDF membrane, PP shell | Ethanol | 2.2 ng/mL |